Event script: last group address tag

[Domoticatorino]

event.dst contains the group address that triggered the event

Hi admin,

thank you for your help. What is wrong with this script below?. Addresses have same tag and I would like that the last one which writes update the other one in the same way. Obviously it generates a loop and I would avoid with the script below. It does not work.
What do you suggest please?

Code:

value = grp.find(event.dst).value
last_thermostat = grp.find(event.dst).address

if last_thermostat == '0/0/1' then
tpid = storage.get('PID:' .. _SCRIPTNAME)
      if tpid ~= nil then
        os.kill(tpid, signal.SIGKILL)
      end
      pid = os.getpid() 
      storage.set('PID:' .. _SCRIPTNAME, pid)
      grp.write('0/0/2', value)
     else
      tpid = storage.get('PID:' .. _SCRIPTNAME)
      if tpid ~= nil then
        os.kill(tpid, signal.SIGKILL)
      end
      pid = os.getpid() 
      storage.set('PID:' .. _SCRIPTNAME, pid)
      grp.write('0/0/1', value)
end
  storage.delete('PID:' .. _SCRIPTNAME)